Before purchasing my 6T, I checked a lot of forums for reviews and views of users. Initially I was inclined to get Huwai/ Honor handset but after seeing all the positive comments of the users, I changed the decision and go with the 6T.
I'll try to share with you my user experience with 6T, I am merely an ordinary user not a tech savy
Battery:
I charge it in car on 30 to 45 minutes drive to office in morning. Due to fast charging capability, it reaches at 100% from 60-80 %. I don't use it heavily in office but still I search multiple websites, WhatApp, FB and emails are connected almost all the day with some music during free time. By the evening at the time of leaving office, I normally find the battery between 60 to 70% which charge to full on same half hour journey back to home. I never felt need to keep a charger at office unlike the honor handset I kept previously.
Speed:
I never find it lagging no matter whatever I am doing on it. i.e Watching videos, listening to music, using some applications , playing games, etc.
Camera:
The camera is not the best available in latest phones like high end Samsung handsets but again there is a huge difference in price. Whatever camera produces result is more than enough for me. I used the camera during my last pleasure/ recreational trip in highland and mountain areas, same satisfying result is of the pictures taken in comfortable atmosphere of office and home.
Just my personal experience